Clean Water Act discharge permit · NPDES MO0135399

TOWER ROCK STONE CO STE GENEVIEVE QUARRY, Ste. Genevieve, MO: NPDES MO0135399 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
14Pollutants under a numeric limit
1Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

TOWER ROCK STONE CO STE GENEVIEVE QUARRY, held by Tower Rock Stone Co., holds NPDES permit MO0135399, which discharges to Mississippi River. EPA’s file records it issued February 2, 2017 and expiring December 31, 2021.

TOWER ROCK STONE CO STE GENEVIEVE QUARRY, Ste. Genevieve, Missouri: Individual permit MO0135399, held by Tower Rock Stone Co.; Industrial stormwater; Administratively continued (past its expiration date and still in force until reissued); issued February 2, 2017, term to December 31, 2021; discharges to Mississippi River.

Oil and grease [soxhlet extr.] tot.: 6 limits, 3 violations of any kind, 1 effluent exceedance, latest March 31, 2020, largest 20% over the limit.
pH: 6 limits, 2 violations of any kind, 0 effluent exceedances.
Solids, total suspended: 6 limits, 2 violations of any kind, 0 effluent exceedances.
Phosphorus, total [as P]: 6 limits, 2 violations of any kind, 0 effluent exceedances.
Benzene: 6 limits, 2 violations of any kind, 0 effluent exceedances.
Ethylbenzene: 6 limits, 2 violations of any kind, 0 effluent exceedances.
Naphthalene: 6 limits, 2 violations of any kind, 0 effluent exceedances.
Rainfall: 6 limits, 2 violations of any kind, 0 effluent exceedances.
Flow, in conduit or thru treatment plant: 6 limits, 2 violations of any kind, 0 effluent exceedances.
Chemical oxygen demand [COD]: 4 limits, 2 violations of any kind, 0 effluent exceedances.
Solids, settleable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Toluene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Volume: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Xylene [mix of m+o+p]: 2 limits, 0 violations of any kind, 0 effluent exceedances.

December 3, 2020: Effluent Violations - Numeric effluent violation (ST6).

Missouri holds 210 Industrial stormwater coverages of this permit type in EPA’s file; 47 were issued before MO0135399.

Coverages issued nearest MO0135399

December 21, 2016: HEAVY DUTY REBUILDERS, Ozark, MO0135313, held by Mr. Derek A. Day
January 5, 2017: BARBOUR CONCRETE COMPANY, Independence, MO0128422, held by Beton Development Co
January 11, 2017: CENTROPOLIS LANDFILL, Kansas City, MO0123790, held by HAMILTON HAULING, INC.
January 13, 2017: POLYNT COMPOSITES USA, INC., North Kansas City, MO0003140, held by Polynt Composites USA, Inc.
February 2, 2017: AMEREN MISSOURI - PENO CREEK ENERGY CTR, Bowling Green, MO0127710, held by AmerenUE
February 8, 2017: MEMC, LLC, St. Peters, MO0000299, held by SunEdison Semiconductor
February 15, 2017: TODAY'S FOOD, LLC, Piedmont, MO0123552, held by Today's Food, LLC
February 23, 2017: FLOYD W. JONES AIRPORT, Lebanon, MO0138037, held by City of Lebanon
February 28, 2017: SHOW ME REGIONAL LANDFILL, Warrensburg, MO0116254, held by SHOW-ME LANDFILL, LLC
March 7, 2017: ASBURY RENEWABLE OPERATIONS CENTER, Asbury, MO0095362, held by EMPIRE DIST ELECTRIC CO

TOWER ROCK STONE CO STE GENEVIEVE QUARRY among its neighbors

EPA’s permit file holds 21 discharge permits in the Moro Island-Mississippi River subwatershed (HUC 071401010910), MO0135399 among them. Its county holds 65, 3 of them major permits; MO0135399 is a minor permit.

Other permits in the Moro Island-Mississippi River subwatershed (HUC 071401010910)

BRAUN BORROW, Ste. Genevieve: MORA26514, minor permit, discharging to North Gabouri Creek, permit term to February 7, 2027
BREEZE HILL ESTATES WWTF, Ste. Genevieve: MOGD00616, minor permit, discharging to Tributary to North Gabouri Creek, permit term to June 30, 2024
BREEZE HILL ESTATES WWTF, Ste. Genevieve: MOGDS0133, minor permit, discharging to Tributary to North Gabouri Creek, permit term to June 30, 2029
CITY OF STE. GENEVIEVE, Ste. Genevieve: MOL052159, minor permit, permit term to December 31, 2025
COUNTRY VILLAGE ESTATES WWTP, Ste. Genevieve: MO0095494, minor permit, discharging to Tributary to North Gabouri Creek, permit term to December 31, 2021
CWI OF MO, INC.-TRANSFER STATION, Ste. Genevieve: MOR80H062, minor permit, discharging to South Gabouri Creek, permit term to September 30, 2029
ENABLE MISSISSIPPI RIVER TRANSMISSION, Ste Genevieve: MOG140013, minor permit, discharging to Tributary to North Gabouri Creek, permit term to June 30, 2024
LHOIST NORTH AMERICA OF MISSOURI INC, Ste. Genevieve: MO0124044, major permit, discharging to Mississippi R., permit term to October 18, 2012
LHOIST NORTH AMERICA OF MISSOURI INC, Ste. Genevieve: MOG491396, minor permit, discharging to Tributary to Mississippi R., permit term to April 30, 2027
MISSISSIPPI LIME COMPANY LLC, Ste. Genevieve: MOR80C164, minor permit, discharging to Tributary to South Gabouri Creek, permit term to November 30, 2027

Identity

Facility as filed	TOWER ROCK STONE CO STE GENEVIEVE QUARRY
Permittee as filed	Tower Rock Stone Co.
NPDES ID	MO0135399
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Industrial stormwater
Issued	February 2, 2017
Expiration date	December 31, 2021
Address	Ste. Genevieve, MO 63670
Receiving water	Mississippi River
Receiving water impaired	303(D) Listed
Subwatershed	Moro Island-Mississippi River (HUC 071401010910)
Other EPA IDs (FRS)	RCRA handler MOD096715651; ICIS-AIR source MO0000002918600022

Effluent limits and exceedances

14Pollutants on file
14Under a numeric limit
10With a violation of any kind
1With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Oil and grease [soxhlet extr.] tot.	6	3	1	March 31, 2020	20% over the limit
pH	6	2	0
Solids, total suspended	6	2	0
Phosphorus, total [as P]	6	2	0
Benzene	6	2	0
Ethylbenzene	6	2	0
Naphthalene	6	2	0
Rainfall	6	2	0
Flow, in conduit or thru treatment plant	6	2	0
Chemical oxygen demand [COD]	4	2	0
Solids, settleable	2	0	0
Toluene	2	0	0
Volume	2	0	0
Xylene [mix of m+o+p]	2	0	0

Inspections, violations and enforcement

1Single-event violations

Date	What EPA recorded	Agency
December 3, 2020	Effluent Violations - Numeric effluent violation	ST6

Inspections

EPA’s inspection file holds no inspection for NPDES MO0135399.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES MO0135399.

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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This public-records page covers NPDES permit MO0135399, held by Tower Rock Stone Co. for the Tower Rock Stone Co. Ste. Genevieve Quarry in Ste. Genevieve, MO, which discharges to the Mississippi River. The permit is administratively continued, with 1 pollutant under a numeric limit and 1 pollutant with an effluent exceedance listed.